Perspective on Weibull proportional-hazards models
โ Scribed by Newby, M.
- Book ID
- 114555222
- Publisher
- IEEE
- Year
- 1994
- Tongue
- English
- Weight
- 519 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0018-9529
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๐ SIMILAR VOLUMES
Proportional hazards is commonly assumed in survival analysis. This assumption appears to be mainly a mathematical convenience, made in order to interpret Cox models in a simple manner. There remains the questions of whether this assumption is actually true to reality in a su cient number of cases,
This paper presents a mixture model which combines features of the usual Cox proportional hazards model with those of a class of models, known as mixtures-of-experts. The resulting model is more flexible than the usual Cox model in the sense that the log hazard ratio is allowed to vary non-linearly